secondary succession occurs in area where there is already soil, but the plants and animal life there has been wiped out.
Answer:
A. Secondary
Explanation:
The description the question gives is where there is soil, but all plants and animals lives have been cut out. This fits the secondary succession.
Primary succession is immediately wrong because it is when the environment is lacking soil, which is not what the question is asking. And since Primary is incorrect, this also means D. All of these is incorrect as well. Annual already has plant life
2. What are the elevations of lines A and B?
3. Provide an approximate elevation for points W (point is inside the circle), X, and Y (point is on the line).
1. The contour interval is 20.
Explanation:
On the map we can see a relief that is depicted with contour lines. The contour lines tend to be very close to each other in general so we can safely make the assumption that the relief is relatively steep, though in accordance to the elevations it is not a high one, but instead the highest points are actually hills.
From the numeric markings on the contour lines we can see the numbers 100, 200, 300, and in between them there are four contour lines. Since the difference in elevation in between every fifth contour line is 100, if we divide that number by the number of contour lines from one thicker contour line to another, which is five, than we get a value of 20, meaning that that is the contour interval.
2. and 3. A has an elevation of 80, B of 60, W between 301 and 319, X between 21 and 39, and Y of 400.
Explanation:
The contour interval is 20 on this map, so with the values we already have as marked on every fifth contour line, as well as the additional contour elements on the map or better reading of it, we can relatively easily establish the value of any point. We have five points in question, some being on the contour lines themselves, while some inside of them, meaning that for the ones on the contour lines we can give an exact value, while for the one inside we can give approximate value.
The points A, B, and Y are all marked on contour lines. A is on the contour line just below the one marked with 100, so minus 20 means that it has a value of 80. The point B is on the second contour line below the one marked 100, so minus 40 means it has a value of 60. Point Y is marked on a main contour line which is not marked, but it is the first thick one after the one marked with 300, so 100 plus means it has an elevation of 400.
Points W and X are marked inside the contour lines, so we can just give a range of value for them. Point W is marked above the contour line marked with 300 and there is no next contour line. Since the contour interval is 20, it means that this point can have value ranging from 301 to 319. Point X is marked below the contour line with a value of 40 and there is no other contour line below, meaning that the value can be in the range of 21 to 39.
biological species
B.
ecosystem
C.
population
D.
genus
Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere. Transpiration is essentially evaporation of water from plant leaves. Transpiration also includes a process called guttation, which is the loss of water in liquid form from the uninjured leaf or stem of the plant, principally through water stomata.
Studies have revealed that about 10 percent of the moisture found in the atmosphere is released by plants through transpiration. The remaining 90 percent is mainly supplied by evaporation from oceans, seas, and other bodies of water (lakes, rivers, streams).
Transpiration and plant leavesPlants put down roots into the soil to draw water and nutrients up into the stems and leaves. Some of this water is returned to the air by transpiration (when combined with evaporation, the total process is known as evapotranspiration). Transpiration rates vary widely depending on weather conditions, such as temperature, humidity, sunlight availability and intensity, precipitation, soil type and saturation, wind, land slope, and water use and diversion by people. During dry periods, transpiration can contribute to the loss of moisture in the upper soil zone, which can have an effect on vegetation and food-crop fields.
Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere. Transpiration is essentially evaporation of water from plant leaves. Transpiration also includes a process called guttation, which is the loss of water in liquid form from the uninjured leaf or stem of the plant, principally through water stomata.
Studies have revealed that about 10 percent of the moisture found in the atmosphere is released by plants through transpiration. The remaining 90 percent is mainly supplied by evaporation from oceans, seas, and other bodies of water (lakes, rivers, streams).
Transpiration and plant leavesPlants put down roots into the soil to draw water and nutrients up into the stems and leaves. Some of this water is returned to the air by transpiration (when combined with evaporation, the total process is known as evapotranspiration). Transpiration rates vary widely depending on weather conditions, such as temperature, humidity, sunlight availability and intensity, precipitation, soil type and saturation, wind, land slope, and water use and diversion by people. During dry periods, transpiration can contribute to the loss of moisture in the upper soil zone, which can have an effect on vegetation and food-crop fields this was easy
B. a mutation in the whales' DNA caused the formation of a useless skeletal structure.
C. the whales may acquire the ability to live on land before the end of their lifetime.
D. the hip bone may have played an important role in the whales' ancestors locomotion.
The correct answer is D. The hip bone may have played an important role in the whales' ancestors locomotion.
Explanation:
Vestigial structures such as the vestigial hip bone in whales refer to structures or features that do not have a function or purpose and therefore are classified as vestigial. In most cases, these structures had an important function in the past but due to evolution and changes in the species, they stop being functional. This means even though the vestigial hip bone of whales does not represent a function nowadays it may have played an important role or function for the ancestors of this species (option D).